KR970059192A - 폴리비닐 알콜의 제조방법 - Google Patents
폴리비닐 알콜의 제조방법 Download PDFInfo
- Publication number
- KR970059192A KR970059192A KR1019970001977A KR19970001977A KR970059192A KR 970059192 A KR970059192 A KR 970059192A KR 1019970001977 A KR1019970001977 A KR 1019970001977A KR 19970001977 A KR19970001977 A KR 19970001977A KR 970059192 A KR970059192 A KR 970059192A
- Authority
- KR
- South Korea
- Prior art keywords
- polyvinyl alcohol
- reaction
- stirrer
- sodium hydroxide
- weight
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F118/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F118/02—Esters of monocarboxylic acids
- C08F118/04—Vinyl esters
- C08F118/08—Vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/12—Hydrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19602901.5 | 1996-01-27 | ||
DE19602901A DE19602901A1 (de) | 1996-01-27 | 1996-01-27 | Verfahren zur Herstellung von Polyvinylalkohol |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970059192A true KR970059192A (ko) | 1997-08-12 |
Family
ID=7783831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970001977A KR970059192A (ko) | 1996-01-27 | 1997-01-24 | 폴리비닐 알콜의 제조방법 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5914369A (fr) |
EP (1) | EP0786478A3 (fr) |
JP (1) | JPH09227623A (fr) |
KR (1) | KR970059192A (fr) |
DE (1) | DE19602901A1 (fr) |
TW (1) | TW354302B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101113042B1 (ko) * | 2006-11-20 | 2012-02-13 | 주식회사 엘지화학 | 균일한 입자크기를 가지는 폴리비닐알코올의 제조 방법 및그 제조방법에 의해 제조된 폴리비닐알코올 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6054530A (en) * | 1998-03-11 | 2000-04-25 | Air Products And Chemicals, Inc. | Continuous process for the preparation of poly(vinyl acetate) for poly(vinyl alcohol) production |
DE10242416B4 (de) * | 2002-09-12 | 2007-08-09 | Wacker Polymer Systems Gmbh & Co. Kg | Verfahren zur Herstellung von Polyvinylalkohol |
KR100759188B1 (ko) * | 2005-10-28 | 2007-09-14 | 주식회사 엘지화학 | 고중합도를 갖는 폴리비닐알코올의 제조방법 및 제조장치 |
MX279004B (es) | 2006-06-22 | 2010-09-14 | Basf Se | Polisulfonas y polietersulfonas con indice de amarillez reducido y procesos para su preparacion. |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE763840C (de) * | 1937-05-10 | 1955-02-14 | Chemische Forschungs Gmbh | Verfahren zur Herstellung von polymeren Vinylalkoholen |
US2642419A (en) * | 1950-01-31 | 1953-06-16 | Eastman Kodak Co | Preparation of polyvinyl alcohol |
US2643994A (en) * | 1950-03-30 | 1953-06-30 | Shawinigan Chem Ltd | Continuous process for the alkaline alcoholysis of polyvinyl esters |
US2734048A (en) * | 1950-04-22 | 1956-02-07 | Chsoh | |
US2779752A (en) * | 1953-11-18 | 1957-01-29 | Du Pont | Apparatus for chemical reactions passing through viscous phase |
US2950271A (en) * | 1954-06-29 | 1960-08-23 | Du Pont | Alcoholysis of polyvinyl acetate |
US3386981A (en) * | 1959-02-05 | 1968-06-04 | Kurashiki Rayon Co | Method of mixing a relatively viscous liquid with a relatively non-viscous liquid |
US3072624A (en) * | 1959-12-29 | 1963-01-08 | Kurashiki Rayon Co | Saponification process for preparation of polyvinyl alcohol |
GB993893A (en) * | 1962-08-01 | 1965-06-02 | Mini Of The Rumanian Ministry | Process for the preparation of polyvinyl alcohol of a high degree of crystallisation |
US3300460A (en) * | 1962-10-24 | 1967-01-24 | Cumberland Chemical Corp | Process for mixing polyvinyl acetate with saponification catalyst |
US3278505A (en) | 1963-10-07 | 1966-10-11 | Kurashiki Rayon Co | Process for producing polyvinyl acetate polymers |
CS150962B2 (fr) * | 1967-09-09 | 1973-09-17 | ||
DE1720806C2 (de) | 1968-03-19 | 1982-09-23 | Hoechst Ag, 6000 Frankfurt | Verfahren zur kontinuierlichen Polymerisation von Vinylestern |
JPS5217870B2 (fr) * | 1973-01-31 | 1977-05-18 | ||
SU891691A1 (ru) * | 1979-09-24 | 1981-12-23 | Предприятие П/Я Р-6956 | Способ получени поливинилового спирта |
DE3000750C2 (de) * | 1980-01-10 | 1986-10-30 | Wacker-Chemie GmbH, 8000 München | Verfahren zur Herstellung von Polyvinylalkohol |
US4338405A (en) * | 1980-12-12 | 1982-07-06 | E. I. Du Pont De Nemours And Company | Process for continuous controlled alcoholysis of polyvinyl acetate |
-
1996
- 1996-01-27 DE DE19602901A patent/DE19602901A1/de not_active Withdrawn
-
1997
- 1997-01-21 TW TW086100635A patent/TW354302B/zh active
- 1997-01-22 EP EP97100916A patent/EP0786478A3/fr not_active Withdrawn
- 1997-01-24 KR KR1019970001977A patent/KR970059192A/ko not_active Application Discontinuation
- 1997-01-24 JP JP9011485A patent/JPH09227623A/ja not_active Withdrawn
- 1997-01-27 US US08/789,465 patent/US5914369A/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101113042B1 (ko) * | 2006-11-20 | 2012-02-13 | 주식회사 엘지화학 | 균일한 입자크기를 가지는 폴리비닐알코올의 제조 방법 및그 제조방법에 의해 제조된 폴리비닐알코올 |
Also Published As
Publication number | Publication date |
---|---|
EP0786478A3 (fr) | 1998-03-18 |
TW354302B (en) | 1999-03-11 |
US5914369A (en) | 1999-06-22 |
DE19602901A1 (de) | 1997-08-07 |
JPH09227623A (ja) | 1997-09-02 |
EP0786478A2 (fr) | 1997-07-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR890005151A (ko) | 카복시메틸 소수적으로 변형된 하이드록시에틸 셀룰로즈(cmhmhec) 및 이의 보호도장 조성물에서의 용도 | |
KR850003355A (ko) | 혈소판형 탄산칼슘 분말과 그 제조방법 | |
AU1959592A (en) | Polymerisation reactor and polymerisation process | |
KR890007722A (ko) | 엑시폰과 수요성중합체를 함유하는 약학조성물 | |
KR970059192A (ko) | 폴리비닐 알콜의 제조방법 | |
DE3663670D1 (en) | Process for the preparation of an ester from starch and a monocarboxylic acid, and a composition based on the starch ester thus prepared | |
JPS64126A (en) | Composite material and its production | |
FR2802923B1 (fr) | Procede de preparation d'une composition d'ester d'acide lactique et son utilisation en tant que solvant | |
KR880009092A (ko) | 메틸실록산 조성물 | |
US4785049A (en) | Forming clear gel and transparent film by reacting alumina hydrate with vinyl alcohol-vinyl acetate copolymer | |
KR940002289A (ko) | 분자쇄말단에 수산기를 갖는 직쇄상 오르가노폴리실록산의 제조방법 | |
KR900006357A (ko) | 다우노루비신을 독소루비신으로 전환시키는 개선된 방법 | |
GB2058801A (en) | Process for the preparation of aqueous solutions of low molecular weight polyacrylic acids or their salts | |
JPS5733597A (en) | Immobilized heat-resistant acetokinase | |
US5621136A (en) | Colorless, non-toxic, stabilized aqueous solution of a C1-C5 alkyl vinyl ether and maleic acid copolymer | |
GB1302286A (fr) | ||
JPS564602A (en) | Novel cationic starch | |
JPS5589306A (en) | Preparation of starch polyvinyl alcohol graet copolymer having reduced viscosity | |
JPS57155969A (en) | Method for making food glossy | |
KR880005173A (ko) | 저함수율의 습윤 폴리락톤 케이크의 제조방법 | |
SU806687A1 (ru) | Способ получени смешанных эфировцЕллюлОзы | |
KR970026901A (ko) | 졸-겔법을 이용한 수산화아파타이트의 제조방법 | |
JPS57164101A (en) | Carboxymethylcellulose having excellent salt water resistance and its production | |
KR840002902A (ko) | 엘라스타제의 정제방법(Elastase의 精製方法) | |
JPS56103203A (en) | Method for gelatinizing aqueous solution of polyacrylic acid hydrazide compound |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |